In this tutorial, you will learn to how to uninstall or remove packages from a Ubuntu or Debian Linux system. How to Remove Packages via Command Line You can use “apt” command line tool for removing packages from your system. For older version of operating systems use “apt-get” command with the same options. Use one of the below options to remove, purge packages from system. Clean the cache files to remove unused software’s from the system....

It also provides you option to create SSH tunnel to provide access to resource within the trusted internal network. With the help of SSH tunnel you can access resources available on other ports, which is not directly accessible from your system. Once you forwarded your localhost port to the port listening on remote network, you can directly access the the remote service by accessing configured port with localhost. The Tunnel provides you port forwarding from both sides....

In this tutorial, I will help you to Upgrade Debian 10 Buster from Debian 9 Stretch with simple steps. In this tutorial, all commands are running with the root account. So you must have root user privilege or sudo privileges to complete this. The Desktop users can upgrade it immediately and use the new features, But the users with Debian servers can wait for their production upgrades. First, they should try this in their development environment and then upgrade on production, if everything goes fine....

This guide includes the following steps: Let’s begin with the initial server setup on the Debian Linux system. 1. Upgrade Debian After login into the Debian server, the first task is to upgrade the current packages of the Debian system. Because It may be the server is built with the old image file. The Debian team keeps working to enhance server security and provide updated packages regularly. First, update the Apt cache on your system....

This tutorial describes how to convert a Python string to int and vice versa. Python Convert String to int Use Python int() function to convert a string value to integer in Python. This function accepts two parameters, one is the string in quotes and the second is an optional base to represent the data. Use the following syntax to return the string value as an integer Open a Python shell to run tests below:...

How to Increase Search Engine Crawl Rate for Your Website? For static sites, you can use services like Ping-o-Matic to ping the search engines. But this is a manual process. WordPress users can use this service automatically even WordPress does this. You can configure your WordPress with more ping lists to update more quickly to among search engines. WordPress Ping List URLs Below is the list of ping URLs can be used with your WordPress blog....

The CPU communicates with the computer’s other components via a bus (a group of wires) and determines which tasks the computer will perform next. Every CPU has a certain amount of cache memory (RAM) to store frequently used instructions. This helps the CPU work more quickly because it doesn’t have to keep reading instructions from slower main memory. All CPUs need a heatsink and fan to keep them cool, otherwise, they will overheat and break....

VIM is also known to be very fast and efficient, making it perfect for developers who need to work quickly and accurately. In short, VIM is a great text editor for Linux, perfect for both novices and experienced users alike. Copy/Paste Contents in Vim Editor Vim is the improvised edition of the Vi editor. Copy and paste is an essential part of the computer user in day-to-day work. We can quickly copy and paste content in Vi/Vim editor using shortcuts....

In order to resolve this issue create the home directory on HDFS. For example, you are logged with with user hduser on your system. All set. Now you can list files and directories under Hadoop Distributed file system and do other operations normally.

How to Create PDF of Webpage Using Google Chrome Headless Requirements: You must be using Google Chrome 59 or a later version. With Google Chrome version 59, it’s only available for MAC OS and Linux users. Windows users still have to wait for some time. Capture Screenshot: Use the following command to capture a screenshot of the given web page. The output file will be created in the current directory with the name screenshot....

In this tutorial, you will learn how to set the Timezone for an application running on Azure App Services. All the screenshots of this tutorial are made for Windows-based Azure App Service. Identify the OS You can easily set the Timezone to Windows app service using environment variables but the settings are different for an app service hosted in Linux or Windows. To identify the OS type, follow: Find The TimeZone The Windows and Linux platforms followed some different string formats for different-2 Timezones....

Setup Nginx for WordPress Permalinks A WordPress website/blog can be run on the main domain or with a directory URL. For example, your blog is running with the main domain. Edit the Nginx configuration file and add the following line under the location section. If you are running your blog under subdirectory URL like /blog, use location a /blog block to your configuration file Save your file and restart the Nginx service....

Setup Expire headers on Apache Before using this, you must have mod expires module enabled on Apache server. On the Debian based systems (Ubuntu, Debian and Linuxmint) expires module is disabled by default. You can enable this by running the following command: After enabling modules, restart Apache server to load new settings. Now, Add the below settings to Apache virtual host configuration file, or add this in .htaccess file under your application....

First of all, enable display_errors parameter in your php.ini configuration file. Then, add the following code to your the application PHP script. For example, add this code to your index.php or other default load script. Here is a sample index.php with enabled error to display on browser.

Ansible is a better alternatives of the other popular infrastructure automation tools available like Chef and Puppet. You don’t need to install any client software on nodes to manage through Ansible server. It uses SSH connection to execute tasks on nodes. This tutorial will help you to install and configure Ansible on Ubuntu 20.04 LTS Linux systems. Prerequisites We have one control node to configure Ansible server and three node servers to be managed....

Install Homebrew on macOS You’ll find that most of the time, folks will tell you to “use homebrew”, or that you have to “install homebrew”. When you see these instructions, it’s likely that the person is referring to the package manager used by many MacOS users. These instructions will be the same for macOS Sierra, macOS High Sierra, and macOS Mojave. To start, open up a Terminal window. You can find the Terminal app in either the Utilities folder or the Applications folder....

This tutorial will help you to install Angular on Fedora 35/34/33 Linux systems. Also, this will help you to create a sample Angular application. Step 1 – Installing Node.js First of all, you need to install node.js on your Fedora system. Use the following set of commands to add node.js PPA in your Fedora system and install required packages. Make sure you have successfully installed node.js and NPM on your system...

We can directly download the LibreOffice Debian packages from its official download page or use the Apt repository for the installation. This tutorial will help you to install LibreOffice on Ubuntu 22.04 Desktop system. Prerequsities You must have: A running Ubuntu 22.04 system with Desktop Sudo privilege or root account access Linux kernel version 3.10 or higher glibc2 version 2.17 or higher version is required Installing Libreoffice on Ubuntu Use the following steps to install the LibreOffice application on a Ubuntu system....

Nagios core is freely freely available from the official sites to deploy on your servers. In this tutorial, we will describe you the steps to install and configure Nagios server on a Ubuntu 20.04 LTS system. Step 1 – Installing Apache Apache is the popular web server required to serve Nagios web pages. The following commands will help you to install or upgrade Apache web server on your Ubuntu system....

The Opera browser is available under the Snapcraft packages. Also the Opera team provides an PPA for installing Opera on Ubuntu systems. This tutorial help you to install Opera web browser on Ubuntu 20.04 LTS Linux system. Prerequisites A running Ubuntu 20.04 system with Desktop Shell access with sudo privileged account Installing Opera on Ubuntu 20.04 Opera web browser packages are available as Linux Snap packages. Also the Opera team provides an official PPA for installing packages on Ubuntu systems....